Book Image

Mobile Forensics ??? Advanced Investigative Strategies

By : Oleg Afonin, Vladimir Katalov
Book Image

Mobile Forensics ??? Advanced Investigative Strategies

By: Oleg Afonin, Vladimir Katalov

Overview of this book

Investigating digital media is impossible without forensic tools. Dealing with complex forensic problems requires the use of dedicated tools, and even more importantly, the right strategies. In this book, you’ll learn strategies and methods to deal with information stored on smartphones and tablets and see how to put the right tools to work. We begin by helping you understand the concept of mobile devices as a source of valuable evidence. Throughout this book, you will explore strategies and "plays" and decide when to use each technique. We cover important techniques such as seizing techniques to shield the device, and acquisition techniques including physical acquisition (via a USB connection), logical acquisition via data backups, over-the-air acquisition. We also explore cloud analysis, evidence discovery and data analysis, tools for mobile forensics, and tools to help you discover and analyze evidence. By the end of the book, you will have a better understanding of the tools and methods used to deal with the challenges of acquiring, preserving, and extracting evidence stored on smartphones, tablets, and the cloud.
Table of Contents (18 chapters)
Mobile Forensics – Advanced Investigative Strategies
Credits
Foreword
About the Authors
About the Reviewer
www.PacktPub.com
Preface

JTAG


JTAG forensics is an advanced acquisition procedure that uses test access ports standardized by the JTAG association. These ports, among other things, can be utilized to access raw data stored in the connected device. The acquisition process involves using existing solder points on the device's circuit board. By using specialized equipment and a matching device-specific JTAG cable, one can retrieve the flash memory contents (less the eMMC overprovisioned area, but including addressable unallocated space) from compatible devices. Notably, JTAG acquisition is often available even for locked, damaged, or otherwise inaccessible devices. JTAG acquisition is available for many Android devices, as well as some feature phones and Windows Phone 7 and 8 devices. JTAG is not available for recent BlackBerry 10 devices. It is not available for any Apple device either.

JTAG operates on a lower level compared to physical acquisition. This has its advantages and disadvantanges.

The following are the...